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Heat and Mass Transfer

, Volume 49, Issue 11, pp 1565–1575 | Cite as

Experimental analysis of regularly structured composite latent heat storages for temporary cooling of electronic components

  • Ekkehard LohseEmail author
  • Gerhard Schmitz
Original

Abstract

This study presents the experimental investigation of regularly structured Composite Latent Heat Storages. Solid–liquid Phase Change Materials have a low thermal conductivity, resulting in high temperature differences. This drawback is compensated by the combination with specially designed frame-structures made of aluminum to enhance the transport of thermal energy. A prototype is investigated experimentally on a test rig, where the heat load and temperatures are measured while the phase change process is observed optically, and compared to a solid block Phase Change Material.

Keywords

Natural Convection Heat Load Phase Change Material Waste Heat Fusion Process 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Abbreviations

CLHS

Composite latent heat storage

PCM

Phase change material

SLS

Selective laser sintering

TIM

Thermal interface material

Latin symbols

c

Specific heat capacity [J/(kg K)]

\(\Updelta h_{f}\)

Latent heat of fusion [(J/kg)]

I

Electric current (A)

k

Thermal conductivity [W/(m K)]

\(\dot{q}\)

Heat flux(W/m²)

\(\dot{Q}\)

Heat load (W)

t

Time (s)

T

Temperature (K, °C)

Greek symbols

α

Thermal diffusivity (m²/s)

ρ

Density (kg/m³)

Indices

F

Fusion

High

High heat load

Low

Low heat load

Max

Maximum

Mid

Medium heat load

V

With respect to volume

Notes

Acknowledgments

This work is being conducted in the frame of a project funded by the Federal Ministry of Economics and Technology (https://doi.org/www.bmwi.de), cf. project funding reference number 20Y0803A.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.Institute of Thermo-Fluid Dynamics, Applied ThermodynamicsHamburg University of TechnologyHamburgGermany

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